If your sedum roof is still looking a bit red or thin, now is the time to give it a bit of fertilizer. We recommend Osmocote which is a slow release fertilizer with controlled amounts of all the critical nutrients for your roof. Just give it a light sprinkle of about 50g/m2. Our 1kg bags are about right for a 20m2 roof. We currently have a special offer of a free Greenrooftops notebook and pen if you buy two bags.
For more info on maintenance to keep your roof looking great see our maintenance page